397547542757376 has 1920 divisors, whose sum is σ = 1369107891486720. Its totient is φ = 112881342873600.

The previous prime is 397547542757369. The next prime is 397547542757461. The reversal of 397547542757376 is 673757245745793.

397547542757376 is a `hidden beast` number, since 3 + 9 + 7 + 5 + 4 + 75 + 427 + 57 + 3 + 76 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 397547542757295 and 397547542757304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1083235811145 + ... + 1083235811511.

It is an arithmetic number, because the mean of its divisors is an integer number (713077026816).

Almost surely, 2^{397547542757376} is an apocalyptic number.

397547542757376 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397547542757376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684553945743360).

397547542757376 is an abundant number, since it is smaller than the sum of its proper divisors (971560348729344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397547542757376 is a wasteful number, since it uses less digits than its factorization.

397547542757376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 624 counting only the distinct ones).

The product of its digits is 32672808000, while the sum is 81.

The spelling of 397547542757376 in words is "three hundred ninety-seven trillion, five hundred forty-seven billion, five hundred forty-two million, seven hundred fifty-seven thousand, three hundred seventy-six".